Skip to main content
Alpha

This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Cyanide results

MS0700011 , Town of Walnut

20 samples have been analysed for Cyanide at Town of Walnut.

This is one analyte out of the system’s whole record. For what has ever been detected here, and when, see all chemical and radiological results; for everything the system is tested for, see the analyte list.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

No date range is applied: this list draws on every sample on record. Show the last two years only.

Every Cyanide result

The table below lists 1–10 of 20 samples, newest first — collected October 2, 2013 to November 18, 2025.

10 Cyanide results from the 10 samples listed here: 0 detected, 10 not detected.

Cyanide results for Town of Walnut, from 1 to 10 of 20 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Nov 18, 2025 15:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-251119-010
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 18, 2025 15:00, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Nov 18, 2025 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-251119-009
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 18, 2025 14:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Oct 5, 2022 15:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-221006-017
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 5, 2022 15:15, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Oct 5, 2022 15:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-221006-016
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 5, 2022 15:30, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Jul 8, 2019 02:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190709-057CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 8, 2019 02:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Jul 8, 2019 02:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
190709-056CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 8, 2019 02:15, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Jun 28, 2016 01:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
160629-016CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 28, 2016 01:45, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jun 28, 2016 01:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
160629-010CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 28, 2016 01:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Oct 2, 2013 01:09
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
131003-004CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 2, 2013 01:09, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Oct 2, 2013 01:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
131003-002CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 2, 2013 01:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013

Routine (10).